My ancient B&D 1/4 sheet sander had a separate punch plate that you trapped the new sheet of sandpaper in. It was two pieces of steel plate with indexed matching holes and you put the piece of sandpaper between them. Then you used a supplied paper punch to punch the holes in the sandpaper. My new Makita 1/4 sheet sander just has a plastic punch plate that indexes around the sander pad, so once you mount the paper, you punch the holes. This one looks a lot like your wooden one on the right side of the pictures. Both of these sanders have just a rubber pad, no velcro. I guess that's why random orbit sanders that have velcro pads always use prepunched sanding disks. I think I would prefer a sheet finishing sander to have a firm rubber backing plate rather than a velcro one.
I've gone out to find myself. If I return before I get back, have me wait for me.
"Sawdust is Man Glitter"
Last edited by Jim Frye; 01-06-2018 at 07:30 PM.
Reason: added thought